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v Letters .Patent No. 60,953, dated January 1,

l Y inrsovnnsnr ni nnenntic more.

dit initials nient ic it ligen ettutireit zum principianti tip time I 'Jvc- TO All) WHM iT MAY CONCERN: p

Be it known Athat i, Lonrn'- C. SPRINGER, `oi Chicago, in the county of Cools, and State of illinois, 'have invented a'new and .useful Electro-Magnetic Safe Loch; and i do hereby declare and make `Known `that the following is a full, clear, and' exact description of the same, reference being had to the accompanying drawings, and the letters andgures marked thereon, which form part of this specification.

My invention consists in unlocking or withdrawing the bolts .which securethe door of a safe, by openingl and closing an electro-magnetic circuit, and also by passing 'thev circuit by which said resnlt vis accomplished through a. series ofmovable contiguousy points, so -that byv displacing said' points, or any one of them, lthe aforesaid circuit is broken. l My invention further vconsists in controlling` and movingl the said movable points inthe aforesaid circuit, by open-ing, and closings; series of electro-'magnetic circuits arranged in connectionl therewith, respectively, so that one familiar with the lock can readily adjust said points to complete the firsta mentioned' circuit, .so that the bolts may be withdrawn; While one not familiar with the loclc cannot, by probability, connect said circuit, and therefore cannot open 'the safe. n To enable those skilled in the art to understand how to construct and use my invention, Will proceed to describe the same 'with particularity, making,` reference in soy doing to the aforesaid drawingauin which- Figure l represents a front elevation of a safe haring mysaid inventiop attached. l A

Figure 2, an interior elevation of the safe door, showing a plan yieW of my invention.; and

Figure 3 is a Vplan' or top View of the door, slightly ajar, disclosing the inode whereby the bolts of the lool;` adjust themselves when the door is closed. 'l

Similar letters of reference in the several figures indicate the same parte of my invention.

A lrepresents thedoer of the safe hinge d'as shown,to the safe in the usual manner. R E represent two bolts, which are connected by a spring, S, which drawrsaid bolts back from theirbeds in .or upon thegsafe, and unlock the safe Whenever'the block E* is withdrawn from between the adjacent ends of said bars, as hereihafter described. To lock the safefthe block? is adjusted, as shown, between the bolts` R, and the door 'closed-g, thei outer ends oi'- the bolts strike against the catches m, which yield to the pressure until the bolts pass far enough back to allow the springs o to throwVr said catches, which are arranged at the. top and bottomaiihehehind said bolts, and thus secure the door. Any other suitable means may be employed to -receive the ends of the bolts, instead of the one above described: E E representan ordinary spool magnet, upon or over which is A arranged a lever, F,-p roviddd With an armature, F', arranged substantially asin telegraphicinstramerite, To

the opposite-end of the lever F isattached a hooker catch, marked M, which operates upon the toothed wheel J, as shot-cnv in iig; 'N representing a pawbto prevent the, said -wheel .l from moving back when the hcol: hl'

is released, :is hereinafter set forth. B C D represent a series of similar magnet spools, having a'corresponding series 'oi leve1s,L, each operatingv upon a corresponding series of tothed Wheels, CT H i, inthe sameV manner that the leverh" operated upon the Wheel d, ,as aforesaid. O represents erlernt, attached at one end to a suitable crank device uponvsaid'rrlieel d and the other end to ablock, R'Which holds 'the bolts it in thesoclicts or catches which secure the door of the safe, as aforesaid. The Vend of said arm Gis suspended from a. swinging l1uugei,Q,

to hold it in vplace when Withdrawn from between the said'bolt's, as hereinafter set forth. The wires passing around the magnet B pass out through the door of the safe, at the small apertures b 6', orrather, terminate in said apertures, .being .properly insulated, so that a circuit is completed around said magnet 'Bg by bringing v the opposite poles of a battery, T, iii'contaet therewith, as shown in g. 1. The wires passing around lthel I magnets G D E, marked, respectively', o d a, are similarly arranged with respect to the small apertures o. d a',

l as showmso" that `circuits may be completed around the magnets by connecting the opposite poles of said battery therewith, as aforesaid. It will be observed that a portion of the circuit a, through or around the magnet E,'passes through arms, e f g L, attached, as shown, to the ivheels G H I, said part of the circuit lbeing properly insulated from said Wheels and theirsupports and shafts, so that'when arranged in contact with points upon the adjacent Wheels, the circuit is complete.;l but when one or more of'said wheels are moved from such` position, the circuit a is broken at said pointspor some of them.

When the safe is to be locked, one or more ot' said wheels, GH I, is movedacertain distance, so as to break the said cizjhguit c mvlien the door is closed and is locked automatically. By observing how inr cach or either imlocke `the safe.

through e single oiiioe; o'r, the mirious orifices may b'e meein diferen' parte of 'the door, instead of being of said ivlieeiss turne from' the positioh in which selicloirouit e is oompleizecl, one moy relily know ,how :zo

readjuat the game in oid position, when desired 'to enlookit-he safe. rhis ieadjustment is effected by eppiying the poles oi' the battery to the ende ofthe Wires passing around the megnet which oorreeponds with the wheel to bemovd, which completes eeicl cirouimand the magnet drews own the correeponling lever L, and raises the` opposite end of sui lever, the nook M reoivng the wheel one notoLf By-removing one or both poles of the battei'y, she

oii'euit is broken, the magnetic attraction ceases, and the levee-is thrown to itvfoimer position by means of va, spring which releases the hook M, iliie pewl N,`howe`ver, holding chey ,wheel in position. By 'completing seid circuit again, the Wheel is revolveri another notch or space, and, by repeating the elosing and opening; of said circuit, 'the Wheel is, 'reedjusted in the proper position,` asequirefi. H v`more thaii'o'ne wheel lied been displaioecl, e similar operation upon the ooifresponing magnet wllreajuet lit, and iiu's, theciiouit be made complete, eo that by applying the poles of the battery, 'es afore'seid, the lever` E operates' upon the Wheel J in 4the I manner above deseribed.. This revolution rof 'elle Wheel J'grevially wthliaws the bloeit? fremito 'position between the belts By, end when aid block is wllolly'withd'ewn, tlzespriegs withdraws the said lioltb and If desired, Athe wiresof the several oirowiite meylal bebrbught outside of the safe,

arranged symmetrically, as lov'm. A* series of any 'number of wheels, G H11, may be employed, the greater num'berhrendeirixig the probabilities oi' accidental afijuetiiient of' the circuit a proportionallyfless, and the number of teeth upon eeeli Wileel ,also decreasing suoli probabilities and `the two features combined r'enierng 4suoli i reedjustmepi; inniteyimprobabie. l y i Haviiig escribe lthe notizie and operation of my invention, I will new specifywhet I Gleim, and ese so -secure by Letters Petensi 1. I olaiin 'unlocking u safe, or withdrawing lthe bolts thereof, by oloeigmid4 opening an electro-magnetic eirouit, passing thi'ough ejseries oiA movable or adjusteiole'points, eubstentielly as ami for thefpurposes set foth,

2. elaim operafsig ipon and edjustig the seid'n'xovoble points in said eleetremagnleto ciicuit, by moans 'of a. eorrespondiiigseries of auxilieryeireuits, substantially as Clelrxcx'beol.,I Y y i v .1 SPEIGER.

Witnesses: i

W, E. Meme, 

